{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105",
    "entityType": "User",
    "nonce": "0xcf3d2e20f7ca4ef22d4a354ba096327254b4e1da50fb52a589313eee25202ff2",
    "signature": "0x31016e1df511a635f6f24df1af901ed8fd09c81c109e4fd1b5a77164a9a218bb5972f07d4ad145b413db8b3477ad7f7154b8e5bb1d0cff23b51c86b643c4f5511b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}